Deer Island Thorofare (Maine)
Historical Light List Characteristics
| 1858 | F W. W12. | LHB Light List (US): 21 |
| 1860 | LHB Light List (US): 16 | |
| 1865-1866 | LHB Light List (All Coasts): 16 | |
| 1868 | ||
| 1870 | LHB Light List (All Coasts): 17 | |
| 1878-1879 | LHB Light List (All Coasts): 22 | |
| 1886 | LHB Light List (All Coasts): 21 | |
| 1888 | LHB Light List (All Coasts): 23 | |
| 1893 | F W. W121/2. | LHB Light List (Atlantic): 25 |
| 1898-1899 | ||
| 1905 | ||
| 1908 | LHB Light List (Atlantic): 26 | |
| 1915 | F W. W12. | USLHS Light List (Atlantic): 30 |
| 1917 | USLHS Light List (Atlantic): 32 | |
| 1920 | ||
| 1927 | USLHS Light List (Atlantic): 33 | |
| 1931 | ||
| 1935 | USLHS Light List (Atlantic): 34 | |
| 1940 | F W. W13. | USCG Light List (Atlantic): 38 |
| 1943 | USCG Light List (Atlantic): 43 | |
| 1945-1947 | ||
| 1950-1952 | ||
| 1953-1955 | USCG Light List - Vol. I-VI: 123 | |
| 1957 | ||
| 1959-1960 | Fl W 10s. W13. fl 2. | USCG Light List - Vol. I-V: 127 |
| 1961 | USCG Light List - Vol. I: 127 | |
| 1963-1965 | ||
| 1966 | USCG Light List - Vol. I: 237 | |
| 1969-1972 | Fl W 6s. W13. fl 1. | |
| 1973-1974 | Fl W 6s. W9. | |
| 1975-1979 | Fl W 6s. W8. | |
| 1982 | ||
| 1987 | USCG Light List - Vol. I: 3220 | |
| 1990-1992 | USCG Light List - Vol. I: 3020 | |
| 1993-1996 | USCG Light List - Vol. I: 3095 | |
| 2004 | Fl W 6s. W8. Obscured 240°-335°(95°). |
Historical Light List Optics and Structures
| 1858 | 4th | 25 | 52 | N/A | LHB Light List (US): 21 |
| 1860 | LHB Light List (US): 16 | ||||
| 1865 | LHB Light List (All Coasts): 16 | ||||
| 1866 | |||||
| 1868 | |||||
| 1870 | Tower square, of brick, whitewashed, attached to a one and a half story wooden dwelling, painted brown. | LHB Light List (All Coasts): 17 | |||
| 1878 | LHB Light List (All Coasts): 22 | ||||
| 1879 | Tower square, of brick, whitewashed, attached to a one and a half story wooden dwelling, painted white. | ||||
| 1886 | Square white tower, attached to a white dwelling. Fog-bell tower red. | LHB Light List (All Coasts): 21 | |||
| 1888 | LHB Light List (All Coasts): 23 | ||||
| 1893 | 26 | LHB Light List (Atlantic): 25 | |||
| 1898-1899 | Square white tower, attached to a white dwelling. Fog-bell tower red. Red brick oil house, 91 feet ME. of light tower. | ||||
| 1905 | White square tower, attached to a white dwelling. Fog-bell tower red. Red brick oil house, 91 feet NE. of light tower. | ||||
| 1908 | White square tower, attached to a white dwelling; fog-bell tower red; red-brick oil house 91 feet N'ly of light tower. | LHB Light List (Atlantic): 26 | |||
| 1915 | N/A | 31 | 53 | White; square tower attached to dwelling. | USLHS Light List (Atlantic): 30 |
| 1917 | 32 | USLHS Light List (Atlantic): 32 | |||
| 1920 | 52 | ||||
| 1927 | USLHS Light List (Atlantic): 33 | ||||
| 1931 | 4 o | 53 | White square tower attached to dwelling. | ||
| 1935 | 4 om | USLHS Light List (Atlantic): 34 | |||
| 1940 | N/A | 52 | USCG Light List (Atlantic): 38 | ||
| 1943 | USCG Light List (Atlantic): 43 | ||||
| 1945-1947 | |||||
| 1950-1952 | |||||
| 1953-1955 | N/A | USCG Light List - Vol. I-VI: 123 | |||
| 1957 | |||||
| 1959-1960 | White square tower. | USCG Light List - Vol. I-V: 127 | |||
| 1961 | USCG Light List - Vol. I: 127 | ||||
| 1963-1965 | |||||
| 1966 | USCG Light List - Vol. I: 237 | ||||
| 1969-1979 | |||||
| 1982 | |||||
| 1987 | USCG Light List - Vol. I: 3220 | ||||
| 1990-1992 | USCG Light List - Vol. I: 3020 | ||||
| 1993-1996 | USCG Light List - Vol. I: 3095 | ||||
| 2004 |
Historical Light List Audible Fog Signals
| 1858 | None | None | LHB Light List (US): 21 |
| 1860 | LHB Light List (US): 16 | ||
| 1865-1866 | LHB Light List (All Coasts): 16 | ||
| 1868 | |||
| 1870 | LHB Light List (All Coasts): 17 | ||
| 1878-1879 | LHB Light List (All Coasts): 22 | ||
| 1886 | Bell struck by machinery, a double blow at intervals of 15 sec. | LHB Light List (All Coasts): 21 | |
| 1888 | LHB Light List (All Coasts): 23 | ||
| 1893 | LHB Light List (Atlantic): 25 | ||
| 1898-1899 | Bell struck by machinery, a double blow every 15 sec. | ||
| 1905 | Bell struck by machinery a double blow every 15 sec. | ||
| 1908 | LHB Light List (Atlantic): 26 | ||
| 1915 | Bell; 2 strokes every 15 sec. | USLHS Light List (Atlantic): 30 | |
| 1917 | Bell; gp. 2 strokes every 15 sec. | USLHS Light List (Atlantic): 32 | |
| 1920 | |||
| 1927 | Bell (1,000-lb.); gp. 2 strokes every 15 sec. | USLHS Light List (Atlantic): 33 | |
| 1931 | BELL; gp. 2 strokes every 15 sec. | ||
| 1935 | USLHS Light List (Atlantic): 34 | ||
| 1940 | BELL; group of 2 strokes every 15 sec. | USCG Light List (Atlantic): 38 | |
| 1943 | USCG Light List (Atlantic): 43 | ||
| 1945-1947 | |||
| 1950-1952 | |||
| 1953-1955 | BELL: gp of 2 strokes ev 15s. | USCG Light List - Vol. I-VI: 123 | |
| 1957 | |||
| 1959-1960 | HORN, diaphragm; 1 blast ev 15s (2sbl). | USCG Light List - Vol. I-V: 127 | |
| 1961 | USCG Light List - Vol. I: 127 | ||
| 1963-1965 | |||
| 1966 | USCG Light List - Vol. I: 237 | ||
| 1969-1972 | |||
| 1973-1975 | HORN, 1 blast ev 15s (2sbl). | ||
| 1976-1979 | HORN: 1 blast ev 15s (2sbl). | ||
| 1982 | HORN: 1 blast ev 15s (2s bl). | ||
| 1987 | HORN: 1 blast ev 15s (2s bl). | USCG Light List - Vol. I: 3220 | |
| 1990 | HORN: 1 blast ev 15s (2s bl). Operates continuously. | USCG Light List - Vol. I: 3020 | |
| 1991-1992 | HORN: 1 blast ev 15s (2s bl). | ||
| 1993-1996 | USCG Light List - Vol. I: 3095 | ||
| 2004 | HORN: 1 blast ev 15s (2s bl). |
 |
1858 - Present |